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Starch Modified With Chitosan and Reinforced WithFeather Keratin Materials Produced by ExtrusionProcess: An Alternative to Starch Polymers
(2018-11-01)Starch (potato), chitosan, and feather keratin are used for processing biodegradable films produced by extrusion. The morphology of the films is examined with a scanning electron microscope and showed the excellent dispersion ... -
State Biopolitics, Illicit Regimes and Security in the Guatemala–Mexico Cross-border Region
(2021-02-15)The article examines the way in which the State was replaced in the municipalities that are drug trafficking routes on the border between Guatemala and Mexico, by an illicit regime that represents a particular type of ... -
State of art of lower limb exoskeleton for assistance (Estado de arte de exoesqueleto para asistencia de extremidades inferiores)
(Universidad Tecnológica de Ciudad Juárez, 2018-05-01) -
State-feedback linearization using a robust differentiator combined with SOSM super-twisting for controlling the induction motor velocity
(IEEE, 2018-12-31)In this paper, the authors propose a robust controller by applying state-feedback linearization technique combined with the super-twisting algorithm as control law, which is applied to control the velocity of the squirrel-cage ... -
Static and spin electric polarizabilities of the neutron in lattice QCD
(ProQuest, 2018-03-01) -
Statistical analysis big academic open course.
(International Association of Technology, Education and Development., 2019-03-11)The growing demand for enrollment of undergraduate students in Public Education Institutions generates the need for new ways of conducting the teaching and learning process. In this paper we analyze the BAOC (Big Academic ... -
Statistical inference of multivariable modal stability margins of time delay perturbated power systems
(2020-01-07)This paper proposes a modal statistical inference algorithm to define multivariable operational stability limits of time-delay perturbed dynamic systems by employing remote sensor signals. Our proposal overcomes the drawbacks ... -
STEAM y MAKER: explorando nuevos enfoques educativos y tecnologías emergentes en la enseñanza del diseño
(Ediciones Egregius, 2020-12-18)El enfoque de la educación STEAM (Ciencia, Tecnología, Ingeniería, Arres y Matemáticas) así como el movimiento Maker (creación, iteración, intercambio, autonomía e interdisciplina) pueden influir significativamente la ... -
Stem Cells as a Model of Study of SARS-CoV-2 and COVID-19: A Systematic Review of the Literature
(2021-08-26)Background. The SARS-CoV-2 virus is the cause of the latest pandemic of the 21st century; it is responsible for the development of COVID-19. Within the multiple study models for both the biology and the treatment of ... -
Stem cells as an option for the treatment of COVID-19
(2022-06-26)The application of stem cells is among the many strategies currently available for the treatment of multiple diseases. Stem cells are characterized as undifferentiated cells that have the ability to differentiate towards ... -
Stigmatization towards healthcare personnel during the first COVID-19 wave in Central and Northern Mexico
(2022-12-13)The evidence all over the world shows an alarming increase in the stigmatization of health personnel during the COVID-19 pandemic. We sought to explore possible psychological factors that help explain the disposition to ... -
Strategies Employed in the Reconfiguration of Healthcare Facilities During COVID-19 in OECD Countries
(Springer, 2022-10-24)This research summarizes the strategies employed in reconfiguring healthcare facilities in OECD member countries to care for patients with COVID- 19. The findings were organized by highlighting each country’s hospital ... -
Streptococcus equi in equine: Diagnostic and healthy performance impacts.
(2019-11-15)Streptococcus equi in equine: Diagnostic and healthy performance impacts. -
Stress concentration reduction in an axially loaded rectangular bar with an elliptical hole
(2023-03-17)Two-dimensional finite element analysis was used for stress concentration factors estimation in a wide range of bar-ellipse height and height-width elliptical hole ratios in a tensile bar. Least squares ... -
Stress-Based Weibull Method to Select a Ball Bearing and Determine Its Actual Reliability
(2020-11-16)Since the designed bearing’s reliability of 90% was determined in a lab environment, it does not represent the actual used environment. In this paper, a new methodology to determine the actual reliability that corresponds ... -
Stress-strength Weibull analysis with different shape parameter B and probabilistic safety factor
(2020-11-05)Since products are subjected to a random variable stress-strength, their reliability must be determined using the stress-strength analysis. Unfortunately, when both, stress and strength, follow a Weibull distribution with ... -
Structural and magnetic behavior of oxidized and reduced fe doped LiNbO3 powders
(2018-02-26)Changes in structural and magnetic properties have been systematically induced in lithium niobate (LiNbO 3) powders, Fe-doped with different concentrations and thermally treated in oxidized and reduced states. A rather ... -
Structural and seismographic characteristics of a sector of the Magdalena Shelf, western margin of Baja California, Mexico, from 2D seismic reflection profiles
(2021-05-25)The Magdalena Shelf, located on the Pacific margin of Baja California, Mexico, is crosscut by the Tosco-Abreojos transform fault system, while the Santa Margarita and San Lazaro faults are sub-parallel and located east ... -
Structural design of biosensor: A review
(2023-10-31)The basic elements in biosensors are the recognition element, reporting element, and measuring device. The typical structure for the biosensing process to occur is the one where the recognition element is first in the ...